Above, from left to right: English daisies introduced into the garth garden in Cuxa Cloister some years ago; a realistic representation of the garth of a Carthusian monastery by Gerard David; the English daisy, Bellis perennis.
The sight is in no way so pleasantly refreshed as by fine and close grass kept short. It is impossible to produce this except with rich and firm soil; so it behoves the man who would prepare the site . . . first to clear it well from the roots of weeds, which can scarcely be done unless the roots are first dug out and the site levelled, and the whole well-flooded with boiling water, so that the fragments of roots and seeds remaining . . . may not by any means sprout forth. Then the whole plot is to be covered with rich turf of flourishing grass, the turves beaten down with broad wooden mallets and the plants of grass trodden into the ground . . . . For then little by little they may spring forth closely and cover the surface like a green cloth.
—Albertus Magnus, De Vegetalibus, translated by John Harvey in Medieval Gardens, 1981.